●A focus on Systems and Sustainability highlight how the various aspects of the environment interact, and how changes in one part of the environment might affect other processes, places and organisms. Understanding this is essential to managing existing problems, avoiding future problems and improving the world we live in.●Well-developed extensive pedagogy offers a clear way for students to move from general concepts to applications of key concepts.●In Your Own Backyard feature provides a critical thinking question at the beginning of each chapter and connects the broad themes of the text to local issues and resources students can investigate.●Critical Thinking and Review Questions, many new to this edition, encourage critical thinking and highlight important concepts and applications. At least one question in each chapter provides a systems perspective; another question relates climate and energy to the chapter. Visual questions have been added to each chapter.